public static Expression FxXor(params Expression[] args)
{
if (Expect <int>(args, 2))
{
return(Ast.ExclusiveOr(UnwrapAndCast <int>(args[0]), UnwrapAndCast <int>(args[1])));
}
return(null);
}
private static DynamicMetaObject TryPrimitiveOperator(OperatorInfo info, DynamicMetaObject[] args)
{
if (args.Length == 2 &&
TypeUtils.GetNonNullableType(args[0].GetLimitType()) == TypeUtils.GetNonNullableType(args[1].GetLimitType()) &&
TypeUtils.IsArithmetic(args[0].GetLimitType()))
{
// TODO: Nullable<PrimitveType> Support
Expression expr;
DynamicMetaObject self = args[0].Restrict(args[0].GetLimitType());
DynamicMetaObject arg0 = args[1].Restrict(args[0].GetLimitType());
switch (info.Operator)
{
case ExpressionType.Add: expr = Ast.Add(self.Expression, arg0.Expression); break;
case ExpressionType.Subtract: expr = Ast.Subtract(self.Expression, arg0.Expression); break;
case ExpressionType.Divide: expr = Ast.Divide(self.Expression, arg0.Expression); break;
case ExpressionType.Modulo: expr = Ast.Modulo(self.Expression, arg0.Expression); break;
case ExpressionType.Multiply: expr = Ast.Multiply(self.Expression, arg0.Expression); break;
case ExpressionType.LeftShift: expr = Ast.LeftShift(self.Expression, arg0.Expression); break;
case ExpressionType.RightShift: expr = Ast.RightShift(self.Expression, arg0.Expression); break;
case ExpressionType.And: expr = Ast.And(self.Expression, arg0.Expression); break;
case ExpressionType.Or: expr = Ast.Or(self.Expression, arg0.Expression); break;
case ExpressionType.ExclusiveOr: expr = Ast.ExclusiveOr(self.Expression, arg0.Expression); break;
default: throw new InvalidOperationException();
}
return(new DynamicMetaObject(
expr,
self.Restrictions.Merge(arg0.Restrictions)
));
}
return(null);
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity")] // TODO: fix
private void MakeOperatorRule(OperatorInfo info)
{
MethodInfo[] targets = GetApplicableMembers(info);
if (targets.Length == 0)
{
targets = GetFallbackMembers(_types[0], info);
}
if (targets.Length > 0 && TryMakeBindingTarget(targets))
{
return;
}
if (_types.Length > 1)
{
targets = GetApplicableMembers(_types[1], info);
if (targets.Length > 0 && TryMakeBindingTarget(targets))
{
return;
}
}
Operators op = CompilerHelpers.InPlaceOperatorToOperator(info.Operator);
if (op != Operators.None)
{
// recurse to try and get the non-inplace action...
MakeOperatorRule(OperatorInfo.GetOperatorInfo(op));
return;
}
if (_types.Length == 2 &&
TypeUtils.GetNonNullableType(_types[0]) == TypeUtils.GetNonNullableType(_types[1]) &&
TypeUtils.IsArithmetic(_types[0]))
{
// TODO: Nullable<PrimitveType> Support
Expression expr;
switch (info.Operator)
{
case Operators.Add: expr = Ast.Add(Param0, Param1); break;
case Operators.Subtract: expr = Ast.Subtract(Param0, Param1); break;
case Operators.Divide: expr = Ast.Divide(Param0, Param1); break;
case Operators.Mod: expr = Ast.Modulo(Param0, Param1); break;
case Operators.Multiply: expr = Ast.Multiply(Param0, Param1); break;
case Operators.LeftShift: expr = Ast.LeftShift(Param0, Param1); break;
case Operators.RightShift: expr = Ast.RightShift(Param0, Param1); break;
case Operators.BitwiseAnd: expr = Ast.And(Param0, Param1); break;
case Operators.BitwiseOr: expr = Ast.Or(Param0, Param1); break;
case Operators.ExclusiveOr: expr = Ast.ExclusiveOr(Param0, Param1); break;
default: throw new InvalidOperationException();
}
_rule.Target = _rule.MakeReturn(Binder, expr);
return;
}
else if (_types.Length == 1 && TryMakeDefaultUnaryRule(info))
{
return;
}
SetErrorTarget(info);
}
